作者:Janine Schulte-Zweckel、Mridula Dwivedi、Andreas Brockmeyer、Petra Janning、Roland Winter、Gemma Triola
DOI:10.1039/c9cc05989j
日期:——
S-acylation is not restricted to palmitate but it includes shorter, longer, and unsaturated fatty acids. However, the diversity of this protein modification has not been fully explored. Herein, we report a chemical probe that combined with MS-based analysis allows the rapid detection and quantification of fatty acids linked to proteins. We have used this approach to profile the S-acylome and to show that the
可逆的S-棕榈酰化是蛋白质功能和定位的关键调节机制。越来越多的证据表明,S酰化不仅限于棕榈酸酯,还包括较短,较长和不饱和的脂肪酸。但是,这种蛋白质修饰的多样性尚未得到充分探索。本文中,我们报告了一种化学探针,该探针与基于MS的分析相结合,可以快速检测和定量与蛋白质连接的脂肪酸。我们已经使用这种方法来分析S-酰基转移酶,并显示癌基因N-Ras被棕榈酸酯和棕榈酸酯异质酰化。对具有半合成蛋白质的膜亚域中蛋白质分布的研究表明,不饱和N-Ras呈现出增加的成簇趋势和更高的插入动力学速率常数。